At the Taste of TECHSHOW Dinner that we hosted back in April, one of the attendees, Kenneth Prochnow, a lawyer from Palo Alto, California, produced his business card, which was imprinted with a QR code. A couple of the more tech-savvy people at the table had QR code readers on their smartphones, and were quickly connected through this little code with Ken’s firm’s facebook fan page.

For those of you who as yet are only peripherally aware of QR codes, they are those little squares full of black and white squiggles that are starting to show up in …